Supplementary glazing device for glazed openings



1935- H. s. CONROW 2,025,198

SUPPLEMENTARY GLAZING DEVICE FOR GLAZED OPENINGS Filed July 10, 1954 I Y 2 She etsSheet 1 Fla. 1

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l P Hen y J Conrow V BY ATTORNEY.

Dec. 24, 1935. H. s. coNRow 2 SUPPLEMENTARY GLAZING DEVICE FOR GLAZED OPENINGS Filed July 10, 1954 2 Sheets-Sheet 2 Henry ,5. Conr ow ATTORNEY.

Patented Dec. 24, 1935 UNITED STATES SUPPLEMENTARY GLAZING DEVICE FOR GLAZED OPENINGS Henry S. Com-ow, Wichita, Kans. Application July 10, 1934, Serial No. 734,543

6 Claims.

This invention relates to a device for the supplementary glazing of glazed openings. The object of this invention is to provide a device whereby a second or third glass may be added to a glazed opening with a dead air space between the panes of glass for the purpose ofpreventing heat losses, as there would be, through single panes of glass. This feature is not only desirable but necessary in rooms or buildings inwhich the air has been conditioned, that is, the air has been cleaned and cooled for summer, or cleaned and warmed for winter. Another object of my invention is to provide a device of the kind mentioned which can be applied to glazed openings that are already in use thereby changing the glazing from a single glass to a multiple glass, and doing so with a small cost and without loss of the sash or glass already in the building. A still further object is to provide a device of the kind mentionedwhich can be readily and easily attached to either i wood or metal sash and the like. These and other objects will be more fully'explained as this description progresses.

Now referring to the drawings in which the same characters of reference refer to the same parts throughout the several figures. Fig. 1 is a perspective and sectional detail through a wooden window frame and sash, parts being broken away for convenienceof illustration. Fig. 2 is a perspective and sectional view of a portionof wooden sash to which a modified form of my invention has been applied. Fig. 3 is a perspective view of a portion of each of the elements employed in the supplementary glazing device. Fig. 4 is a detail perspective and sectional view of a steel frame and sash to which my invention has been applied. Fig. 5 is a perspective and sectional view of a wooden sash to which a modified form of my invention has been applied. Fig. 6 is a detail per- 4 spective and sectional view of my invention as the usual window frame III, in which is mounted the upper sash II and the lower sash '12, each of which carries the usual pane of glass 13 and I4. The elements holding the second pane of glass l5 l6 consist of a T shaped bar I! and a channel shaped element l8. The channel shaped element I8 is made preferably of a spring material, such as spring brass. Between the element I l and the sash is a sealing element such as a strip of felt or rubber l9 and in the elements I 1 and I8 65 are holes 20 and 2| which register with each other to receive screws or bolts for the purpose of holding the assembly together.

The assembly is made as follows: The sealing strip I9 is placed around the edge of the opening and may or may not be' cemented to the sash, and 5 over the sealing strip 19, and around the opening of the sash is placed the T shaped element 11 and within the space inclosed by the T shaped element I1 is placed the supplementary glass IE or iii which is embedded in putty, or a mastic l0 material and after the glass has been so set the channel element I8 is placed over the assembly just described in such a manner that one leg of the channel rests on the glass and the other leg rests on the outside portion of the T shaped elel5 ment l1, then screws 23 are passed'through holes 20 and 2| and screwed into the sash II or l2 so as to bind the glass l5 or IS in an air tight'joint between the elements l1 and I8 and also bind the elements I! and ill with an air tight joint be- 20 tween the element l1 and the sash on which the assembly is mounted. If the glass I5 is to be divided into small panes, a mullion frame carrying the small panes of glass is formed of the T bar l1 and the channel element l8 which are 5 heldtogether by bolts 24 which pass through the two members l1 and I8 and clamp on the glass l5, there being a putty or mastic material between the two elements 11 and I8 to form an air tight joint around the glass I5. The element 30 I1 being attached preferably by being welded to the T shaped bar ll. In installing this supplementary glass mounting on a lower sash, the' meeting rail of the sash would be rabbeted out as at 25 and a spring Weatherstrip 2% would be at- 5 tached to themeeting rail 21 on the upper sash and bear against the meeting rail 28 of the lower sash, to form an air tight joint between the two meeting rails as shown in Fig. 1.

It may be desirable at some time to make the 4 supplementary glazing device so that it is not permanently attached to the sash, that is, it could be removed sufilciently to clean both sides of the glass without taking the device entirely oil the.

sash, therefore, as shown in Flg.'2, the T shaped 45 element ll may be equipped with a hinge 29 which is attached to the sash H by means of screws 30, the hinge 29 being attached to the element H by being welded thereto or if desired, the hinge could be bolted to the T shaped element 50 H. In this construction the bolts 3l would be substituted for the screws 23 in Fig. 1, and the bolts would merely fasten the elements I! and 18 together to clamp and hold the glass l5.

. In Fig. 4 is illustrated my invention as being applied to steel sash, the frame of which is designated at 32. 33 is the sash proper, holding the usual glass l3, and at H is the T shaped element and at I8 is the channel element, the two being held and clamped together by means of a bolt 3 which passes through the two elements I! and i8 and is threaded into the steel sash 33. The glass l5 being mounted in a putty or mastic setting and being clampedbetween the elements l1 and I8 as previously described. f

In Fig. 5 is shown a multiple mounting of glass as applied to a wooden sash. This mounting comprises a T shaped element I'I", having an outwardly projecting shoulder thereon against which one leg of the channel element l8 may rest. .At I51: is one of the supplementary glasses mounted in the T shaped element I1" and being mounted in a bed of putty or mastic material and at 36 is an H shaped spacing bar resting against the leg of the T shaped element l1" and also against the glass its. At Iiy is a second supplementary glass resting against the H shaped spacer element 35 and being mounted in a putty or mastic mounting as previously described. At i8 is the spring channel element resting against the glass I51: and the shoulder 35 and at 232: is shown screws passing through the elements It and i1" and into the sash. Hz and thereby rigidly binding the whole assembly together. I

Now referring to Fig. 6, in this assembly is shown a multiple glazing comprising a channel element 31, having outwardly extending legs 38 which are attached by means of screws 39 to the face of an opening through a thick element such as a refrigerator door or the like and at 4|, 4| and 42 are shown glass, the edges of which are fitted against the channel 31 and at 30' and 36" are shown H shaped spacer elements between the panes of glass lll, ll and 42. At flat are shown the channel like elements, one leg of which rests It will be understood that the glass, ll and 42 and the spacers 38' and 36" areset in putty or mastic material to form an air tight joint between the several parts.

Such modifications may be employed as lie within the scope of the appended claims without departing from the spirit and intention of my invention. Now having fully described my invention, what I claim as new and desire to secure by LettersPatent is:

1. In a supplementary glazing device for glazed openings, said device comprising the combination of a frame element, the cross section of said frame 5 element'being substantially Tshaped, glass in said frame, said glass resting on the T portion of said element, a channel like element, one leg of said channel like element resting against said glass, the other leg of said channel like element resting 10 against the opposite side of the T shaped frame element, a mastic material between said glass and said T shaped element and between said glass and said channel like element, and means for binding saidT shaped element and said channel like ele- 15 ment together to make a rigid mounting for said glass. and means for attaching the assembled framework to the frame of said opening.

2. A supplementary glazing device, said device comprising a T shaped element and a channel 20 shaped element, said channel straddling the stem of the T shaped element, a pane of glass inter-. mediate one flange of the T shaped element and one leg of the channel, the other leg of said channel resting on the other flange of said T shaped 5' element, said pane of glass being embedded in a mastic material held between said channel and said T shaped element, means for holding said channel and T shaped elements together, and

means for attaching said elements to the frame 0'" said T shaped element and the frame element of Y said glazed opening.

35 4. A supplementary glazing device, said device comprising a frame work formed of a T shaped element and a channel like element, said channel tight joint between said deviceand said mm of a glazed opening: I

6. A supplementary glazing device as in claim 4, and means for hingedly attaching said device to the frame of a glazed opening, and means for eiiecting an air tight joint between said device and said frame of a glaaed opening.

, HENRY B. CONROW. 

